Was National Civil Service Commission of Colombia hit by ransomware?

National Civil Service Commission of Colombia was listed by the kazu ransomware operation (Colombia), and stolen data was published on the group's leak site. Darkfield tracks this disclosure with the original leak post, screenshot and group context.

Who is the kazu ransomware group?

kazu is a ransomware operator tracked by Darkfield. See the full operator dossier for its known victims, sectors targeted, IOCs and leak-site infrastructure.

What data was leaked in the National Civil Service Commission of Colombia breach?

kazu published data attributed to National Civil Service Commission of Colombia. Darkfield captured the leak post and a screenshot of the listing.

Ransomware victim disclosure

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National Civil Service Commission of Colombia

Claimed by Kazu · listed 8 months ago

Age

since listed · data leaked

Status timeline

ListedNov 11, 2025
Data leakeddate unknown

At a glance

Group: Kazu
Status: Data leaked
Country: Colombia
Sector: Public Sector
Listed on leak site: Nov 11, 2025

About the victim

AI dossier — public-source company profile

The Comisión Nacional del Servicio Civil (CNSC) is a Colombian national government body responsible for administering and overseeing the civil service career system ('carrera administrativa') for public sector employees across Colombia. It manages competitive selection processes for thousands of civil service vacancies, maintains the public registry of career civil servants, and regulates performance evaluations and personnel commissions for national and territorial public entities.

Industry: Government Civil Service Administration
Address: Carrera 22 No. 38-65, Bogotá, Colombia
Employees: 51-200

Attack summary

Severity: critical — The CNSC is a national government institution holding large-scale PII on civil servants and applicants across Colombia, including personnel records, selection process data, and potentially identity and employment data of public employees nationwide. Data_published status indicates confirmed exfiltration from a government entity handling regulated public-sector personal data at scale.

The ransomware group Kazu claims to have compromised the CNSC and has published data ('data_published' status), though the leak post itself is minimal and provides no explicit description of the exfiltrated data volume or type. No ransom amount was stated.

critical

Data the group says was taken

AI dossier — extracted from the leak post

Civil service applicant records
Government employee personnel data
Selection process documentation
Administrative and financial information
Citizen petition and service records

What the group claims

The official portal of the Comisión Nacional del Servicio Civil (CNSC), Colombia’s National Civil Service Commission. This government body is responsible for overseeing the recruitment, selection, and management of public servants in the country. It ensures that hiring for government positions is fair, transparent, and based on merit. The site provides essential information about job openings in the public sector, application processes, and the regulations that govern public service employment in Colombia. It serves as a key resource for individuals seeking to apply for civil service positions or learn about public sector employment in Colombia

The leak post

captured from the group's site

Apache/2.4.65 (Debian) Server at 6czlbd2jfiy6765fbnbnzuwuqocg57ebvp3tbm35kib425k4qnmiiiqd.onion Port 80

Sources

Victim sitecnsc.gov.co
Leak posthttp://6czlbd2jfiy6765fbnbnzuwuqocg57ebvp3tbm35kib425k4qnmiiiqd.onion/ransom.html#National

Source

Indexed 8 months ago

This page surfaces a public ransomware disclosure indexed by Darkfield. Original posts come from the operator's own leak site; we cross-check against ransomware.live, RansomLook and RansomWatch where applicable. Share this URL freely.

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Disclosure context

About kazu

The Kazu ransomware group is a relatively new threat actor that emerged in November 2025, operating with apparent financial motivations based on their targeting patterns across multiple sectors and geographic regions. Given their recent emergence and limited public documentation, details about their country of origin and potential affiliations remain unclear, though their targeting of diverse international victims suggests either a ransomware-as-a-service model or an independent operation with broad reach capabilities. With only nine documented victims to date, specific details about Kazu's attack methodology, initial access vectors, and encryption techniques have not been extensively documented by major threat intelligence organizations, though their targeting spans healthcare, public sector, financial services, and technology organizations across the United States, Colombia, South Africa, Nigeria, and Great Britain. The group's recent emergence means there are no widely reported major campaigns or high-profile incidents documented by established security research organizations like Mandiant, CISA, or the FBI. As of the latest available intelligence, Kazu appears to remain active given their very recent first observation date, though their limited victim count and recent emergence make definitive assessments of their operational status preliminary. The group has been linked to 14 public disclosures across our corpus. First observed on a leak site on November 11, 2025; most recent post May 27, 2026. The operation is currently active.

Timeline of this disclosure

November 11, 2025National Civil Service Commission of Colombia listed by kazuon the group's public leak site

Other recent disclosures by kazu

kazu has been linked to 14 public victims on Darkfield. A sample of the most recent:

See the full kazu dossier →

Sector and geography

This disclosure adds to ransomware activity in the Public Sector sector, which has 466 disclosures indexed across all operators we track. Geographically, National Civil Service Commission of Colombia is reported in Colombia, a country with 19 ransomware disclosures in our corpus.

If your organisation is affected

A listing by kazu means National Civil Service Commission of Colombia appeared on a ransomware extortion site and data attributed to it has been published. If this is your organisation, or a supplier you depend on, the priority is to confirm the intrusion and contain it before the window to act closes.

Engage your incident-response team and preserve forensic evidence before remediating — do not wipe affected systems first.
Force a password reset and revoke active sessions for exposed accounts; rotate any credentials, API keys or certificates that may have been in the stolen data.
Assess regulatory notification duties (GDPR, NIS2, sector regulators) — many carry a 72-hour reporting clock from awareness.
Monitor for the data appearing on kazu's leak site and across paste and breach channels, and brief downstream partners who may be exposed through you.

How we know this. Darkfield monitors public ransomware leak sites continuously, archiving every new disclosure and the data later released against the victim. Each entry on this page is sourced from the operator's own publication and cross-checked against complementary OSINT feeds (RansomLook, ransomware.live, RansomWatch). We do not collect or host stolen data — only the metadata, timestamps and screenshots needed to make the public disclosure searchable and accountable. Records here are corrected when the original post is edited, retracted, or merged with another disclosure.